Corrected entry: During Joey's surprise birthday party in her dorm room, she and Dawson start arguing and everyone else suddenly leaves. Right after that, as Joey and Dawson are standing in the room arguing, you can see the shadow of another person on the wall just behind Joey, to the left. The shadow appears to be a boom operator, with a long-handled boom mic, and you can see him moving in and out of the shot by his shadow. Dawson and Joey aren't moving at this point, so neither of them could be causing the shadow. Also, there is equipment shown in shadow as well.
Corrected entry: When Dawson is excitedly telling Pacey about how well his movie project is going, he makes a point of saying that 'he's already written 20 pages of his script, and can't wait to get home to write some more'. But later in this episode, Dawson is in his bedroom trying to work on his script with apparent Writer's Block. He starts to type on the laptop screen "Open with" and can't go any further. This implies that he is just starting his script, and is blocked to go any further. But previously he claimed to have already written 20 pages, plus any others after he got home.
Corrected entry: At the beginning of the episode, the camera pans across the floor of Joey's dorm room to her bed - showing the trail of clothing that apparently came off before she and Dawson were intimate. There is a clear close-up shown of her bra, implying that Joey was wearing street clothes at the time and took them off rapidly to sleep with Dawson. But in the previous episode; Joey had been in pajamas ready for bed when Dawson woke up and gave her the birthday gift, which led to the intimacy. Joey wasn't wearing a bra at that time, just pajamas. And she wouldn't likely have just dumped her street clothes on the floor in a trail leading to her bed before changing into PJs.
Corrected entry: When Audrey calls Pacey at work, he knows it's her before she says anything. When Audrey asks him how he knew it was her, Pacey replies "Because I'm psychotic". I'm pretty sure the Actor Joshua Jackson really intended to say "I'm psychic" but messed up his lines. As soon as he says "psychotic", you can see him roll his eyes as if to acknowledge he made a mistake.